Ms Quinn ' s trial
216On 27 September 2004, Ms Quinn was indicted before Bell J on one count of murder and one count of intent to pervert the course of justice by the acts of disposing of the body of the deceased and cleaning the premises where he was murdered. Ms Quinn pleaded not guilty to each count. The appellant was indicted at the same time before Bell J on identical counts. As already indicated, the appellant pleaded not guilty to murder but guilty to the count of doing acts with intent to pervert the course of justice. The trial proceeded as a joint trial until 29 September 2004, when Bell J ordered separate trials and the jury was discharged from giving verdicts in respect of the appellant. Ms Quinn's trial continued before Bell J.
217In Ms Quinn's trial, the Crown case was that Ms Quinn had struck the deceased on the head with the axe with an intention to kill or to inflict serious harm. The injury thus inflicted was injury number 1 and, on the evidence of Dr Little in Ms Quinn's trial, was a potentially fatal injury. Initially, it was the Crown case in Ms Quinn's trial that the other injuries had been inflicted by Mr Cooper with the baseball bat and that injury number 4 was also potentially fatal.
218The appellant contended that the case put to the jury in Ms Quinn's trial was one of joint criminal enterprise.
219The Crown submitted that the prosecution case against Ms Quinn was not based upon any agreement with the appellant to kill or seriously injure the deceased. The Crown pointed out that although in her instructions to the jury in Ms Quinn's case, Bell J used expressions including " joint attack " and " joint assault ", at no time did her Honour use the expression " joint criminal enterprise ". In particular, her Honour did not, according to the Crown, use that phrase in her summing up to the jury, nor did she give any direction to the jury explaining the concept of joint criminal enterprise.
220The Crown also submitted that there was evidence in Ms Quinn's trial upon which a jury might well have based their decision to acquit her. In particular, the case against Ms Quinn was based solely upon the evidence of C. Ms Quinn gave evidence in her defence. Her evidence was the same as she gave in the appellant's trial, namely that the appellant, unprovoked apart from the deceased calling him a " rock spider ", hit the deceased with a baseball bat a number of times and then a little later hit him with the axe.
221The Crown submitted that if the jury did not accept the truth and accuracy of the admission that C said Ms Quinn made to her, then, inevitably, there would have been an acquittal. The Crown pointed out that in Ms Quinn's trial, C had not given her evidence with any great certainty. In cross-examination, C stated that she was " pretty sure " she had a conversation with Ms Quinn in relation to the blood on the ceiling and how it got there. She conceded, however, that she could have had that conversation with the appellant.
222In re-examination in Ms Quinn's trial, C said that all that she could remember was Ms Quinn telling her that the deceased and the appellant had had a fight and " then there was an axe and -- and he got hit with the axe ". She said she was " pretty sure I heard [Ms Quinn] say she was the one that hit [the deceased] with the axe ". When asked to recount the conversation she had with Ms Quinn as best she could, C said, " I don't know, I can't remember ... I don't even know if it was [Ms Quinn] or [the appellant] telling me any more ".
223The Crown submitted that having regard to this evidence, it was possible that the jury could not be sure whether it was Ms Quinn or the appellant who relayed to C the information about the axe being used. If that were so, they could not be satisfied that it was Ms Quinn who had used the axe. The Crown also submitted that it was possible that the jury was not satisfied that Ms Quinn had the necessary intent for murder or might have considered that she had come to the appellant's aid.
224The point of the Crown's explanation of possible reasons for Ms Quinn's acquittal was to demonstrate that there were bases in the evidence for an acquittal, but that the acquittal was not based upon the rejection of a case based on joint criminal enterprise, because no such case was run.
225An examination of the transcript of Ms Quinn's trial confirms the Crown's submission that Ms Quinn's trial was not based on a joint criminal enterprise with the appellant. At the conclusion of the evidence on 7 October 2004, Bell J asked the Crown and Ms Quinn's counsel what directions to the jury they considered were required. Her Honour also raised with the Crown prosecutor " the way the Crown puts liability for murder ". The Crown prosecutor responded:
"Your Honour, if she didn't hit him, we haven't proved it ... Is that put simply enough your Honour?"
226After further discussion with his Honour, it was apparent that there was more complexity in the Crown case than encompassed in that response. The Crown said that the case was one of joint assault in which two significant injuries had been inflicted, that is injuries number 1 and 4, each of which had the potential to be fatal. The Crown indicated to her Honour that the jury did not have to be satisfied as to which blow was the fatal one. The Crown then stated that its case was one of " joint criminal liability " in respect of which both Ms Quinn and the appellant were liable as principals.
227Her Honour indicated that, in addition to directing the jury that Ms Quinn had inflicted the fatal blow, she would give an alternative direction that there was a " joint assault " involving Ms Quinn and the appellant; that Ms Quinn participated in that assault by striking the deceased with an axe; and that the joint assault reflected an understanding, albeit tacit, that " at least grievous bodily harm would be inflicted ". Both the Crown prosecutor and Ms Quinn's counsel accepted that this was an appropriate direction to be given to the jury. Such a direction would have been a direction that Ms Quinn and the appellant had engaged in a joint criminal enterprise.
228The terms of the directions were not finalised at that stage and the matter was adjourned to 11 October 2004. When the matter resumed on that day, her Honour again raised the question of the directions to be given to the jury. She handed to the Crown and Ms Quinn's counsel a copy of written directions she was proposing to give to the jury. Her Honour referred first to the direction she proposed to give in relation to the Crown case that Ms Quinn had delivered a blow to the head with the axe which substantially contributed to the deceased's death.
229Still in discussion with counsel, her Honour turned to the alternative basis upon which she understood that the Crown put its case and said:
"... you will see that I have set out the elements including that both [Ms Quinn] and [the appellant] had an intention in participating in the assault, to kill or to inflict grievous bodily harm on the deceased, together with [Ms Quinn's] knowledge of what it was that [the appellant] was doing and her awareness that he was possessed of that intention."
230After raising an unrelated issue, her Honour continued:
"... I take it Mr Crown, it is the Crown's wish to leave it also on the alternative basis of a joint assault in respect of which she aided and abetted [the appellant]." (emphasis added).
The Crown prosecutor responded:
"It is at this stage your Honour but I may say this, as I reflect on what I say, I reflect on what my friend says, I may again -- or your Honour may feel inclined to revisit the matter even if I don't raise it with your Honour."
Her Honour responded " yes " to this statement.
231As I understand this submission and her Honour's affirmative response, the Crown prosecutor was indicating that if he did not take up in his address to the jury the alternative basis that had been discussed, he would expect that her Honour would not direct the jury on any alternative basis. In his address to the jury, the Crown prosecutor did not suggest that there was any alternative basis upon which Ms Quinn's guilt should be considered, nor did Ms Quinn's counsel direct attention to any alternative case.
232In her Honour's summing up to the jury on 12 October 2004, she directed the jury as follows:
"Turning then to the first count which is the charge of murder. The way the Crown puts its case is that [Ms Quinn] was involved in a joint assault upon the deceased with [the appellant]. It is the Crown's case that in the course of that joint assault upon [the deceased], [Ms Quinn] struck the deceased to the head with an axe or hatchet thereby occasioning the injury that is described by Dr Little as injury number one, the injury to the top of the head to the right of the midline or centre line of the head. It is the Crown case that that injury significantly contributed to the death of the deceased and that at the time [Ms Quinn] struck him to the head with the axe or hatchet, she intended either to kill him or to do him grievous bodily harm. That is the way the Crown puts its case ...
The elements of the offence of murder that the Crown must prove beyond reasonable doubt are firstly, that the deceased died as a result of head injuries inflicted with blunt force during the course of an assault on him. Secondly that the accused inflicted one or more of the injuries that caused the death of the deceased by striking him on the head with an axe or hatchet. And I emphasise that is the Crown case. If you are not satisfied that she participated in that assault by striking to the head with an axe or hatchet, the Crown has not proved an element that is essential to proof of its case. The third element is that at the time of striking the deceased with the axe or hatchet, it was the accused's intention to kill or cause grievous bodily harm to the deceased ...
Now returning to the elements of the offence and for present purposes to element number two, it is important to understand that the Crown does not have to prove that it was the sole act of [Ms Quinn] that caused the death of the deceased. It is, as I have emphasised, the Crown case that this was a joint assault and that [the appellant] struck a blow or blows to the head of the deceased, it is the Crown case that [the appellant] struck the blow that caused injury number four and as I have said to you, that was first in time and according to Dr Little, itself a potentially fatal injury.
It is sufficient for the Crown to prove that [Ms Quinn's] act in striking the deceased to the head with an axe or hatchet, significantly contributed to his death. The concept of significantly contributing to death includes the concept of accelerating the process of death if you were to consider that had been put in train by [the appellant] with the first blow that caused injury number four.
The only evidence that is capable of establishing that [Ms Quinn] was involved in the infliction of any of the fatal violence on the deceased, is the evidence of [C] and that is [C's] evidence that sometime on the afternoon of Sunday 23 March ... [Ms Quinn] said to her words to this effect, '[the deceased] came around and him and [the appellant] started having a fight and then she got the axe and hit him with the axe'. I am there quoting [C's] evidence of what it is she said [Ms Quinn] told her. She went on to say that she had asked [Ms Quinn] about the stains that she observed on the ceiling and that [Ms Quinn] said, 'It was where the blood had spurted'. She was asked if [Ms Quinn] has said what caused the blood to spurt and she replied, 'From where she cut his face with the axe'.
I emphasise that there is no evidence apart from [C's] account of that conversation that is capable of proving that [Ms Quinn] was involved in the assault upon the deceased that led to his death. It is the Crown case that you would accept [C] as being accurate in the recall of the conversation and that you would be satisfied beyond reasonable doubt that when [Ms Quinn] said those things to [C] she was being truthful ...
The central issue in this case as I am sure you well appreciate members of the jury, is whether the Crown has proved beyond reasonable doubt that it was [Ms Quinn] who struck the deceased with the axe or hatchet. And I will come back to that and remind you a little more fully of the evidence of [C] in due course." (emphases added)
233Her Honour then dealt with the element of intention for the purposes of murder on the basis of the case upon which she had directed the jury. In particular, she directed the jury that:
"... where a specific result is the obvious or inevitable consequence of doing an act and a person goes ahead and does the act, you may readily conclude that he or she did the act with the intention of achieving that result."
234The following day, her Honour stated that she had completed her directions in respect of the elements of the offence of murder and then turned to the elements of the offence of doing an act with intent to pervert the course of justice. Her Honour did not, at any stage, give a direction as to any alternative basis of the murder count, either in the terms she had discussed with the Crown prosecutor and Ms Quinn's counsel on 7 and 11 October 2004, that is, that Ms Quinn had aided and abetted the appellant, or in respect of a joint criminal enterprise. There was no mention of pre-concert, or of agreement, or of assisting or encouraging the appellant in the joint criminal enterprise to commit the crime: see Tangye at 556-557 referred to at [66] above.
235Accordingly, the fundamental factual basis upon which the appellant sought to base his argument on incontrovertibility has not been made out. The appellant did not seek to make out any other basis upon which the principle applied and for that reason alone this ground of appeal should be dismissed.
236The Crown also submitted that the principle of incontrovertibility, as it has been expressly developed to date, has not been applied as between different accused. The Crown submitted that this was understandable, because the principle was unlikely to have application as between different accused, as the factual and legal issues in relation to an individual accused in a different trial will necessarily be different.
237This was easily demonstrated, on the Crown's submission, by reference to the requirement that the necessary intention for a particular offence in most cases is subjective. Any verdict in which Ms Quinn's mental state at the time she struck the accused was in issue, could not be binding, in the sense of being incontrovertible, on the question of the appellant's mental state at the time he struck the accused. The Crown also submitted that whilst Ms Quinn was entitled to the full benefit of her acquittal, the appellant was not correspondingly entitled to a benefit from that acquittal. The appellant had not been placed in double jeopardy by being tried for the murder of the deceased on the basis of joint criminal enterprise, in circumstances where another accused had been acquitted of the murder of that person.
238Although the metes and bounds of the principle of incontrovertibility remain undetermined: Gilham v Regina [2007] NSWCCA 323; 178 A Crim R 72 per McClellan CJ at CL at [149], I am of the opinion that the better view is that the principle does not avail a co-accused. Rather, it applies in respect of a later charge against an accused who has been acquitted of another crime. In R v Carroll [2002] HCA 55; 213 CLR 635 Gleeson CJ and Hayne J stated:
"[40] There are cases where a charge of an offence would be manifestly inconsistent on the facts with a previous acquittal, even though no plea of autrefois acquit is available. Since, in most cases of trial by jury, it will not be known why the accused was acquitted, and in many cases the reason may simply be that the jury had a doubt about whether the prosecution had established some element of the offence, the inconsistency, if it exists, will appear from a comparison of the elements of the new charge with the verdict of not guilty of the previous charge, understood in the light of the issues at the first trial."
239In Carroll the accused was acquitted of murder but was later charged with perjury. Their Honours continued:
"41 The present case provides an example. The only element of the offence of murder that was in issue at the original trial of the respondent was whether he killed Deidre Kennedy. The perjury alleged at the second trial consisted of the respondent's falsely denying, on oath, that he killed Deidre Kennedy. The falsity of the testimony was claimed to be that he said he did not kill Deidre Kennedy whereas in truth he killed her. It was accepted in argument in this Court that, although it was not expressly averred, it was necessarily implied in the perjury indictment that the respondent had killed the child.
42 In the present case, there was manifest inconsistency between the charge of perjury and the acquittal of murder. That inconsistency arose because the prosecution based the perjury charge solely upon the respondent's sworn denial of guilt. The alleged false testimony consisted of a negative answer to a question, asked by his counsel, whether the respondent killed the child. The fact that the question asked was whether the respondent killed Deidre Kennedy rather than whether he murdered her, or whether he was guilty, is immaterial. Discretionary decisions do not turn upon such differences. Once such manifest inconsistency appeared, then the case for a stay of proceedings was irresistible."
240In the same case, Gaudron and Gummow JJ stated:
"86 The interests at stake in a case such as the present ... touch upon matters fundamental to the structure and operation of the legal system and to the nature of judicial power. First, there is the public interest in concluding litigation through judicial determinations which are final, binding and conclusive. Secondly, there is the need for orders and other solemn acts of the courts (unless set aside or quashed) to be treated as incontrovertibly correct. This reduces the scope for conflicting judicial decisions, which would tend to bring the administration of justice into disrepute. Thirdly, there is the interest of the individual in not being twice vexed for one and the same cause. Finally, there is the principle that a cause of action is changed by judgment recovered in a court of record into a matter of record, which is of a higher nature." (citations omitted) (emphasis added)
241McHugh J considered, at [117], that it was sufficient if, in that case, the subsequent charge for perjury " had a tendency to undermine the respondent's acquittal of an earlier charge of murder ".
242His Honour continued:
"118 ... The long established policy of the law is that an acquittal is not to be contradicted or undermined by a subsequent charge that raises the same ultimate issue or issues as was or were involved in the acquittal. That is so even though the evidence proving perjury is unanswerable.
...
138 ... For the purposes of the criminal law, the entry of an acquittal on the charge of murdering [the deceased] was a final judicial determination that Carroll did not kill her. Under the common law, that determination could not be directly challenged or undermined in or by any subsequent criminal proceeding."
243A principle stated and explained in these terms does not readily apply to co-accused. That is apparent from the reference to " autrefois acquit " and to the comparison of the elements of the new charge against the verdict of not guilty of the previous charge in the judgment of Gleeson CJ and Hayne J; to the juridical factors underlying the principles referred to by Gaudron and Gummow JJ, at [86], and in particular, the reference to the first and third of those factors; and to the reference in McHugh J's statement, at [118], that an acquittal was not to be contradicted or undermined by a later charge that raises the same issue or issues as were involved in the acquittal.
244There are indications in the authorities that, in addition to the principle of incontrovertibility, a wider principle based upon abuse of process may operate in certain circumstances, where the focus is not upon whether the accused is charged with a later offence, some essential element of which has been determined by an earlier verdict for a different charge. See Rogers v R [1994] HCA 42; 181 CLR 251; Garrett v R [1977] HCA 67; 139 CLR 437.
245However, in Carroll Gleeson CJ and Hayne J noted, at [47]:
"Whether Rogers or Garrett should be understood as standing for some wider proposition need not be decided, although it may be accepted that there may be cases where a second prosecution is argued to be oppressive and an abuse of process, even though there is no direct inconsistency between the new charge and the earlier verdict. The circumstances that may constitute oppression or an abuse of process are various. The discretionary considerations that may be relevant in dealing with them cannot be rigidly confined. Nevertheless, where it is said that the abuse lies in seeking to controvert an earlier verdict of acquittal, there appears much to be said for the view that it is necessary to direct attention to the elements of the offence of which the person was acquitted and the elements of the offence with which the person is later charged. Seldom, if ever, will considering whether the later charge controverts an earlier acquittal require attention to whether evidence which would be led at a second trial is new or persuasive." (citation omitted) (emphasis added)
246The appellant did not seek to rely upon some broader principle of abuse of process. Ground 6 was based solely upon the principle of incontrovertibility. The appellant's case on that basis was predicated upon the murder charge against Ms Quinn having been prosecuted on the basis that she was guilty as a participant in a joint criminal enterprise. I have concluded that that was not the basis upon which the jury was asked to determine Ms Quinn was guilty of murder. For that reason alone, this ground should be dismissed.
247I am also of the opinion that there is no support in the authorities for the legal proposition that the appellant advanced, namely, that the principle of incontrovertibility applies as between different accused persons. Nor does any wider principle of abuse of process extend to a case such as this. It is not unusual where there are separate trials of co-accused for one accused to be acquitted and another or others to be convicted. The reason for this is to be found not only in the jury's assessment of the evidence, but, more fundamentally, in the fact that one of the essential elements of the crime in each case, namely, the intention of the accused, is different. This is well explained by the example proffered by McHugh J in Osland , at [79], referred to at [63] above.
248For these reasons, I would reject ground 6.